| Issue |
MATEC Web Conf.
Volume 412, 2025
42nd. Annual Conference “Meeting of the Departments of Fluid Mechanics and Thermomechanics” in the connection with XXIV. International Scientific Conference “The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy” (42nd. MDFMT & XXIV. AENMMTE-2025)
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| Article Number | 01009 | |
| Number of page(s) | 8 | |
| Section | Measurement and Calculation of State Variables in the Fluid Flow | |
| DOI | https://doi.org/10.1051/matecconf/202541201009 | |
| Published online | 05 September 2025 | |
Influence of aerostatic force on measuring the aerodynamic moment during the torsional oscillation of a linear blade cascade
University of West Bohemia, Faculty of Mechanical Engineering, Department of Power System Engineering, Univerzitní 22, Pilsen 30614, Czech Republic
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
An improved method of measuring unsteady aerodynamic moments at torsional oscillations of flexibly mounted blades in a linear cascade is presented. Specifically, a systematic error was found in measuring the real part of the unsteady aerodynamic moment (not affecting system stability). The error cause is identified as a change in the torsional stiffness of the elastic suspension of the blade profile under the influence of a stationary aerodynamic force. A mathematical model for error compensation is developed and successfully applied, improving the measurement method.
© The Authors, published by EDP Sciences, 2025
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